雜種群體 的英文怎麼說

中文拼音 [zázhǒngqúntǐ]
雜種群體 英文
hybrid population
  • 雜 : Ⅰ形容詞（多種多樣的; 混雜的） miscellaneous; varied; sundry; mixed Ⅱ動詞（混合在一起; 攙雜） mix; blend; mingle
  • 種 : 種名詞（姓氏） a surname
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 體 : 體構詞成分。
  • 雜種 : [生物學] hybrid; crossbreed; intercross; [遺傳學] random breed; [動物學] half bred; 雜種不育性 hy...
  • 群體 : 1. [生物學] population; colony2. [社會學] group
  1. Rapd ( random amplified polymorphic dna ) technique was used to study the genetic structure and genetic differentiation of the natural population and the hatchery stock of chlamys farreri. amplifications with 20 10 - base primers under predetermined optimal reaction yielded 153 reproducible amplified fragments ranging from 200 to 3000bp. the mean proportions of polymorphic amplified fragments of natural population and the hatchery stock were 73. 2 % and 70. 6 % respectively, and the mean hetreozygosities of them were 0. 27 and 0. 26 respectively

    在對20個野生櫛孔扇貝和20個養殖櫛孔扇貝的基因組dna的檢測中， 20個隨機引物共擴增出153條清晰可分辨的dna片段，片段大小在200 3000bp之間，其中野生種群和養殖群體多態性片段分別為112和108條，多態位點比例分別為73 . 2 %和70 . 6 % ，雜合度分別為0 . 27和0 . 26 。
  2. He defines the local population or deme as the group of potentially interbreeding individuals at a given locality.

    他說地區的種群或居群是某一地區具有潛在雜交能力的個體的集群。
  3. Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.

    完全在同一種群內進行雜交的個體比以兩個方向進行雜交的個體繁殖後代要多，因此為了產生無生機的雜種，就要消耗掉一些配子。
  4. Abstract : the main characters and seed set of bc1 ， bc2 ， bc1f2 from ms line back - crossing with the pollen of hybrid rice were studied. the appearance of a large number of self fertile plants in ms line was analyzed. the effect of introgression of restoring genes on ms line purity and hybrid yield in indica and japonica rice was discussed. it was pointed out that “ iso - cytoplasm restorer line ” was seriously reducing the purity of ms line and that hybrid rice was unsuitable for isolation zone in the seed production fields

    文摘:研究了雜交稻花粉對母本不育系回交後代群體bc1 、 bc2 、 bc1f2的主要農藝性狀和育性表現，分析了不育系中出現大量自交結實株的原因，討論了恢復基因滲入對秈、粳不育系純度和雜交稻產量的影響，指出「同質恢」對降低不育系純度的嚴重性和雜交稻作制種田隔離區的不合理性。
  5. The space distribution of pigment gland density on eleven places was analyzed by allotetraploid of ( g. arboreum g. bickii ) and varieties with pigment gland of g. hirsutum g. barbadense and the progeny population which is crossed by allotetraploid of ( g. arboreum g. bickii ) g. hirsutum and ( g. arboreum g. bickii ) g. barbadense

    摘要利用（亞洲棉比克氏棉）異源四倍體和陸地棉、海島棉有色素腺體品種以及由（亞洲棉比克氏棉）異源四倍體為母本，以陸地棉和海島棉有色素腺體品種為父本，組配成的雜交後代群體，對植株上十一個部位色素腺體密度在群體內的分佈進行了初步分析。
  6. In the preprocessing stage the method of user and session identification often adopt heuristic algorithm for the being of cache and agent. this induce the uncertainty of data resource. the cppc algorithm avoid the limitation and has no use for complicated hash data structure. in this algorithm, by constructing a userld - url revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors ; frequent access paths can also be discovered by further processing of the latter. experiments show the effectiveness of the algorithm. in the fourth part, this thesis bring some key techniques of data mining into web usage mining, combine the characteristic of relation database design and implement a web usage mining system wlgms with function of visible. lt can provide the user with decision support, and has good practicability

    本文演算法避免了這個缺陷，且不需要復雜的hash數據結構，通過構造一個userid - uel關聯矩陣，對列向量進行相似性分析得到相似客戶群體，對行向量進行相似性度量獲得相關web頁面，對後者再進一步處理得到頻繁訪問路徑。實驗結果表明了演算法的有效性。第四是本文將傳統數據挖掘過程中的各種關鍵技術，引入到對web使用信息的挖掘活動中，結合關系數據庫的特點設計並實現了一個具有可廣西人學頎士學位論義視化功能的web使用挖掘系統wlgms 。
  7. Abstract : physical activity has been defined as " any bodily movement produced by skeletal muscles that results in energy expenditure ". it is strongly endorsed as a means of staying healthy and an important avenue for social contact. although in australia, some studies have been conducted into the levels of physical activity in some ethnic communities, there has been a tendency to adopt a homogeneous view of culturally and linguistically diverse ( cald ) people rather than an ethno - specific perspective that recognises differing cultural beliefs and practices between and across language groups. this paper reports on a study that aimed to explore the concepts of, and attitudes towards, physical activity among older hong kong chinese australians resident in nsw. this study involved individual in - depth interviews and the use of open - ended questions. a total of 22 informants was recruited for the study. the findings revealed that most informants did not have a clear idea about what was meant by the term physical activity. " physical activity " tended to be a confusing and complicated term to this group. in addition, attitudes towards physical activity among this group reflect their cultural and health beliefs in preventive health care. to increase the physical activity level among older hong kong chinese australians, culturally - specific health promotion strategies might be needed to tackle the misconception about and specific attitudes towards physical activity, as well as to match the holistic chinese oncept of health maintenance

    文摘:身體活動指"由骨骼肌產生的體能消耗運動" ，是保持身體健康、增進社會交往的重要方式和途徑.在澳大利亞，雖然有研究調查民族群體身體活動的各個層面，但總體而言，多數研究更側重於民族群體的同質性，而忽視了其異質性.本研究探討在新南威爾士州居住的澳籍香港老年華人對身體活動的概念理解及對身體活動的態度.研究使用開放性問卷進行個體深度訪談，受訪者22人.研究發現，大多數受訪者不清楚"身體活動"這一術語的含義，對他們來說， "身體活動"是一個模糊的、復雜的術語.該群體對身體活動的態度反映了他們在預防性衛生保健方面的文化和健康觀念.顯然，提升澳籍香港老年華人的身體活動水平，需要一種基於文化特殊性的健康促進策略以解決對身體活動的誤解，同時也需要具體的身體活動態度與華人整體性保健觀念相匹配
  8. Physical activity has been defined as " any bodily movement produced by skeletal muscles that results in energy expenditure ". it is strongly endorsed as a means of staying healthy and an important avenue for social contact. although in australia, some studies have been conducted into the levels of physical activity in some ethnic communities, there has been a tendency to adopt a homogeneous view of culturally and linguistically diverse ( cald ) people rather than an ethno - specific perspective that recognises differing cultural beliefs and practices between and across language groups. this paper reports on a study that aimed to explore the concepts of, and attitudes towards, physical activity among older hong kong chinese australians resident in nsw. this study involved individual in - depth interviews and the use of open - ended questions. a total of 22 informants was recruited for the study. the findings revealed that most informants did not have a clear idea about what was meant by the term physical activity. " physical activity " tended to be a confusing and complicated term to this group. in addition, attitudes towards physical activity among this group reflect their cultural and health beliefs in preventive health care. to increase the physical activity level among older hong kong chinese australians, culturally - specific health promotion strategies might be needed to tackle the misconception about and specific attitudes towards physical activity, as well as to match the holistic chinese oncept of health maintenance

    身體活動指"由骨骼肌產生的體能消耗運動" ，是保持身體健康、增進社會交往的重要方式和途徑.在澳大利亞，雖然有研究調查民族群體身體活動的各個層面，但總體而言，多數研究更側重於民族群體的同質性，而忽視了其異質性.本研究探討在新南威爾士州居住的澳籍香港老年華人對身體活動的概念理解及對身體活動的態度.研究使用開放性問卷進行個體深度訪談，受訪者22人.研究發現，大多數受訪者不清楚"身體活動"這一術語的含義，對他們來說， "身體活動"是一個模糊的、復雜的術語.該群體對身體活動的態度反映了他們在預防性衛生保健方面的文化和健康觀念.顯然，提升澳籍香港老年華人的身體活動水平，需要一種基於文化特殊性的健康促進策略以解決對身體活動的誤解，同時也需要具體的身體活動態度與華人整體性保健觀念相匹配
  9. This may also happen in disturbed areas or in regions where the range of two or more species or even genera overlap, producing hybrid swarms

    另外在極其相似物種之間也存在幾乎完全的持續統一體，比如某些種類的蘭花，這種情況在生態被擾亂的地區或兩至多個種甚至屬界限重疊處也有發生，結果會產生雜種群。
  10. Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements

    利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大
  11. The obtained results do not support a major gene for body mass index in chinese, the discrepancies between our study and previous studies may result from ethnic difference between chinese and other populations ; the general model provides the best fit to the data, while the environmental model is the second parsimonious model, perhaps due to complex mode of body mass index inheritance ; a moderate heritability estimate is found for body mass index ( h2 = 0. 313 ), lower than that of other populations, this is presumably due to the fact that aside from the influence of genetic bases, body mass index is strongly influenced by environmental factors and that there is a low proportion of obese individuals in samples ( only 4. 1 % individuals have body mass index > 30 )

    分離分析的結果表明， （ 1 ）體重指數不存在主基因分離，不同於在其他非中國人群中檢測的結果，說明存在種群差異性； （ 2 ）一般模型提供了最合適模型，環境模型是次之的嚴格模型，可能由於體重指數遺傳模式的復雜性所致； （ 3 ）中國人群中體重指數具有適中的遺傳率（ h ~ 2 = 0 . 313 ） ，低於其他人群中的結果，這是由於體重指數除了受遺傳因素影響外還受環境因素影響及樣本中低比例的肥胖個體（ 4 . 1的個體bmi 30 ）的原因。
  12. In order to select male nucleo - sterile new genotype, a tentative idea was put forward for the nucleo - male sterility to attach a tps ( thermo - photoperiod sensitivity ) and a selection strategy of combination of selection and identification, at the same time, the spring and summer sowing method were used to provide different environment conditions of appraising sterility and tps. the results indicated that ( 1 ) sterility could be appraised under the spring sowing environment and tps could be appraised under summer sowing environment. ( 2 ) under spring sowing environment, sterility could be selected, but not maintained. thereby, lines selected could only be selected as recorded selection method in the experiment. ( 3 ) and then, selection was carried out from spring sowing line selected into summer sowing in same line with tps to select plants. these plants through the intercrossing selection had been combined with sterility and tps. in this way, a new selection protocol for selection sterile line with tps was formed. it mainly involves the spring and summer sowing method, recorded selection method and the intercrossing selection method

    為了選育新類型玉米雄性核不育系，提出了為玉米核不育性添加溫光敏感性的設想和選擇與鑒定相結合的策略，同時應用分期播種的方法為作物提供不同的生長和發育的環境條件，以鑒定玉米雄穗的育性變化和對不同環境條件溫光的反應.研究結果表明，春播環境下可鑒定和選擇玉米的不育性，夏播環境下可鑒定和選擇其溫光敏感性.針對玉米核不育性難以找到保持系的特性，結合兩種播期選擇兩種性狀.但春播環境下選擇的不育性群體難以通過選擇單株來保持其不育性，為記錄性群體選擇.通過從春播入選的雜合不育性優良株系群體轉移到其對應的夏播溫光敏感性入選的同一優良群體中進行優良單株選擇，能逐漸使不育性和溫光敏感性相結合而選育出純合溫光敏不育系.這種新的選擇程序主要包括應用分期播種法、記錄性選擇法和春夏兩季交叉式選擇法，使含有不育基因的可育株系逐步累積不育基因並增加了溫光敏感性而育成玉米溫光敏不育系
  13. No matter hybrid rice or conventional rice varieties, erect and semi - erect panicle rice varieties were suitable for equal row spacing cultivation for intercepting mare light at canopy, while curved - panicle rice varieties were for wide - narrow row spacing cultivation for improving light intensities of middle and lower layer leaves

    但不同類型品種適宜的栽培方式不同：雜交稻適宜插單苗，而常規稻適宜插3苗；不論是雜交稻還是常規稻，直立穗型和半直立穗型品種適宜等行距栽培以減少群體漏光，彎曲穗型品種適宜寬窄行栽培以改善中下層葉片的光照條件。
  14. Analysis on population genetic variation and its correlation to heterosis of body weight using microsatellite dna markers in yellow plumage broilers

    黃羽肉雞群體遺傳變異的微衛星分析及其與體重雜種優勢的關系
  15. Population genetic structure was studied using rapd analysis to reveal the relationship between the genetic variations and heterosis

    同時採用rapd技術對f1代不同群體的遺傳結構進行比較，研究群體內的遺傳變異與雜種優勢的關系。
  16. Sweetpotato pollens killed by u. v. didn ' t sprout ; 2. normal pollens sprouted ; 3. pollens of 5x mixed with recognition pollens attached and sprouted much ; 4. in the negative - cross, sweetpotato pollens attached and sprouted much on the stigma of 5x ; 5. in the possitive - cross without recognition pollen, 5x pollens few attached and sprouted ; 6. in the treatment of pgr ( twice ), globular - embryo observed on 15 days after pollination ; 7. ovule obtained by intercross germinated on the medium ; 8. plantlet from intercross ovule grew on the medium ; 9. seeds obtained by opening pollination ; 10. tubers of hybrids from 5x crossed by sweetpotatos for two generations

    紫外線殺死的甘薯花粉在親和柱頭上不萌發； 2 .未經紫外線處理的甘薯花粉在柱頭上正常萌發； 3 .在蒙導花粉作用下，五倍體的花粉在甘薯柱頭上大量附著和萌發； 4 .反交組合甘薯花粉在五倍體柱頭上大量附著和萌發； 5 .正交組合無蒙導花粉時五倍體花粉少量附著和萌發； 6 .生長調節劑二次處理后，授粉后15天所見的球形胚； 7 .雜交胚珠在培養基上萌發； 8 .雜交胚珠培養成苗； 9 .放任授粉收獲的大量種子； 10 .五倍體與甘薯雜交兩代產生的後代群體的結薯性。
  17. ( 4 ) this dissertation makes a summery of decision thought of ahp and makes a study on structuring method of the complicated problems. it set up two combination ways of judgment matrixes in group ahp. it also proves its theory

    （ 4 ）在總結ahp決策思想的基礎上，提出了一種復雜問題群體結構化方法，合肥工業大學博士論文摘要給出了群體ahp判斷矩陣的兩種集結演算法，並詳細證明了這兩種集結方法的理論依據；研究了群體ahp判斷矩陣的優化集結原理；合作提出了一個基於rooghset的判斷矩陣構造方法。
  18. Mining data between people characters and their actions is a important aspect for multidimensional association rules. for example, association trend between students ' s nature information and their behavior. but many general mining tools have not paid much attention to these aspects

    對于群體的特徵與行為的數據挖掘是關聯規則挖掘的一種重要的也是復雜的挖掘方向。例如在學生系統中的學生個體自然信息與他們的選課行為傾向之間的關聯傾向，商業領域中的顧客基本信息與購買傾向也屬于這類情況。
  19. With respect to genetic similarity, genetic distance and cluster analysis among samples of f1 generation, it showed that the most genetic identity is between jfp and jmp, ( i = 0. 9934, dnei = 0. 0066 ), the next was between jp and jmp ( i = 0. 9873, dnei = 0. 0128 ), the third was jp and jfp, with i = 0. 9681, dnei = 0. 0325 ; the fourth was jp and cp, with i = 0. 9035, dnei = 0. 1015 ; the fifth was cp and jmp, with i = 0. 8862, dnei = 0. 1208, and the furthest was between cp and jfp, with i = 0. 8648, dnei = 0. 1452

    由此可以看出在此四組中，雜交組的遺傳變異明顯高於自交組的，雜種優勢已初步顯示出來。而在兩雜交組中，日雄中雌雜交組又優于日雌中雄組中自交組。群體間遺傳相似系數和遺傳距離及聚類分析結果表明：兩雜交組間的遺傳相似系數最大，遺傳距離最小，僅為0 . 0066 ，而中自交組群體與日雌中雄雜交組群體的遺傳距離最大為0 . 1452 ，兩自交組群體間的遺傳相似系數為0 . 9035 ，遺傳距離為0 . 1015 。
  20. The polynomial regression showed that the change range of pigment gland density was more wide in hybrid population, our aim was to look for good plant by selecting hybrid

    多項式回歸分析結果表明：色素腺體密度在雜種群體中變化范圍較為廣泛，因而對雜種進行選擇，可望得到理想植株。
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